Sn doped CdWO 4 nanorods for augmented photodegradation of methyl orange
Materials Letters, ISSN: 0167-577X, Vol: 353, Page: 135304
2023
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Article Description
The heterojunctions and doped tungsten-based semiconductor metal oxides play a vital role in the elimination of dye molecules from wastewater. In this study, we successfully prepared Sn-doped CdWO 4 nanorods with doping concentrations of 1, 3 and 5 mol% by the one-pot hydrothermal method. XRD analysis confirmed the monoclinic lattice with the high crystalline nature of the materials. Moreover, HRTEM images revealed the rod-like structure of the materials. Photocatalytic activity (PCA) performance was evaluated under UV light irradiation using methyl orange (MO) as a model pollutant. Among all the samples, the optimal doping concentration of 3 mol% Sn-doped CdWO 4 (CSW-3) demonstrated the highest PCA of 95%. The scavenger test confirmed the involvement of superoxide ( O2.- ) and hydroxyl radicals ( OH. ) in MO degradation. The larger surface area (14.42 m 2 /g) of CSW-3 and oxygen vacancies are responsible for the enhancement of PCA and a plausible mechanism for the enhanced PCA was also proposed.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0167577X23014891; http://dx.doi.org/10.1016/j.matlet.2023.135304; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85173568206&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0167577X23014891; https://dx.doi.org/10.1016/j.matlet.2023.135304
Elsevier BV
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